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Size Guide: Shiki Futon


Size Thickness
Single W100 × L210 cm (39" × 82") 10 cm (3.9")
Semi-Double W120 × L210 cm (47" × 82") 10 cm (3.9")
Double W140 × L210 cm (55" × 82") 10 cm (3.9")

*All sizes and thicknesses are approximate.

*Please note: In Japan, futon sizes are traditionally indicated by the measurements of the outer fabric casing before stuffing. Accordingly, the sizes listed in our store refer to these dimensions prior to filling. Because our Shiki Futons are filled with a generous amount of 100% cotton, the futon expands in thickness, which pulls the edges inward. As a result, the finished futon becomes slightly smaller than the original casing, making it difficult to state an exact final size. On average, the width decreases by approximately 7 cm and the length by 10 cm after stuffing. However, with regular use, the inner filling gradually settles and flattens, bringing its overall size closer to the original casing dimensions.


If you would like to order a custom size, please kindly contact us →

About thickness: A freshly made futon is lofty and filled with air, measuring approximately 10 cm (3.9 in) at its fullest point. With regular use, the fibers will gradually settle and compress, transforming from a soft, airy feel into a firmer, more supportive surface. Over time, the thickness may reduce to roughly half its original height. Even as the futon settles, you will continue to enjoy the firm yet comforting resilience unique to natural cotton. For those who prefer extra cushioning, we recommend placing a thin urethane mat underneath to enhance support.